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Wang M, Lou E, Xue Z. The role of bile acid in intestinal metaplasia. Front Physiol 2023; 14:1115250. [PMID: 36891144 PMCID: PMC9986488 DOI: 10.3389/fphys.2023.1115250] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Accepted: 02/10/2023] [Indexed: 02/22/2023] Open
Abstract
A precancerous lesion of gastric cancer (GC), intestinal metaplasia (IM) is a pathological transformation of non-intestinal epithelium into an intestinal-like mucosa. It greatly raises the risk of developing the intestinal type of GC, which is frequently observed in the stomach and esophagus. It is understood that esophageal adenocarcinoma's precursor lesion, chronic gastroesophageal reflux disease (GERD), is what causes Barrett's esophagus (BE), an acquired condition. Recently, Bile acids (BAs), which are one of the compositions of gastric and duodenal contents, have been confirmed that it led to the occurrence and development of BE and gastric intestinal metaplasia (GIM). The objective of the current review is to discuss the mechanism of IM induced by bile acids. This review serves as a foundation for further research aimed at improving the way BE and GIM are currently managed.
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Affiliation(s)
- Menglei Wang
- Department of Digestive Diseases, The First Affiliated Hospital of Xiamen University, Xiamen University, Xiamen, China
| | - Enzhe Lou
- Department of Digestive Diseases, The First Affiliated Hospital of Xiamen University, Xiamen University, Xiamen, China
| | - Zengfu Xue
- Department of Digestive Diseases, The First Affiliated Hospital of Xiamen University, Xiamen University, Xiamen, China
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2
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Li Y, Jiang L, Li Z, Liu Y, Xiao B, Ding Y, Wen H. Differences in gastric microbiota and mucosal function between patients with chronic superficial gastritis and intestinal metaplasia. Front Microbiol 2022; 13:950325. [PMID: 36466659 PMCID: PMC9712754 DOI: 10.3389/fmicb.2022.950325] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2022] [Accepted: 10/24/2022] [Indexed: 11/26/2023] Open
Abstract
Chronic superficial gastritis (CSG) and intestinal metaplasia (IM) can further develop into gastric cancer, which seriously endangers the health of people all over the world. In this study, the differences in gastric microbiota between CSG patients and IM patients were detected by 16S rRNA gene sequencing. As the expression levels of mucin and CDX2 are closely related to IM, the expression differences of mucin (MUC2 and MUC5AC) and CDX2 in the gastric mucosa of CSG patients and IM patients were detected by Western blot and qRT-PCR. The results showed that both Faith_pd and Observed_species indexes of microbiota in the gastric juice of CSG patients were significantly higher than those of IM patients. At the genus level, Thermus and Anoxybacillus were dominant in the gastric juice of IM patients, and Helicobacter was dominant in the gastric juice of CSG patients. Non-metric multidimensional scaling (NMDS) demonstrated that the dispersion of samples in the CSG group is greater than that in the IM group, and some samples in the CSG group are clustered with samples in the IM group. The KEGG metabolic pathway difference analysis of gastric juice microbiota in CSG and IM patients revealed that the gastric juice microbiota in the CSG and IM patients were significantly enriched in the amino acid metabolism, carbohydrate metabolism, and metabolism of cofactors and vitamins, and the functional differences between the two groups were mainly concentrated in the bacterial secretion system (VirB1, VirB2, VirB3, VirD2, and VirD4). In conclusion, there are significant differences in gastric microbiota and mucosal function between the CSG and IM patients. Moreover, the results of this study may provide a new means for the detection of CSG and IM and a new direction for the prevention and treatment of CSG and IM.
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Affiliation(s)
- Yingxia Li
- Department of Gastroenterology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Libin Jiang
- Department of Gastroenterology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Zhichao Li
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, China
| | - Yali Liu
- Department of Gastroenterology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Bo Xiao
- Department of Gastroenterology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yan Ding
- Department of Gastroenterology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Hongtao Wen
- Department of Gastroenterology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
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3
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Abstract
Inflammatory Bowel Disease (IBD) is a term used to describe a group of complex disorders of the gastrointestinal (GI) tract. IBDs include two main forms: Crohn’s Disease (CD) and Ulcerative Colitis (UC), which share similar clinical symptoms but differ in the anatomical distribution of the inflammatory lesions. The etiology of IBDs is undetermined. Several hypotheses suggest that Crohn’s Disease and Ulcerative Colitis result from an abnormal immune response against endogenous flora and luminal antigens in genetically susceptible individuals. While there is no cure for IBDs, most common treatments (medication and surgery) aim to reduce inflammation and help patients to achieve remission. There is growing evidence and focus on the prophylactic and therapeutic potential of probiotics in IBDs. Probiotics are live microorganisms that regulate the mucosal immune system, the gut microbiota and the production of active metabolites such as Short-Chain Fatty Acids (SCFAs). This review will focus on the role of intestinal dysbiosis in the immunopathogenesis of IBDs and understanding the health-promoting effects of probiotics and their metabolites.
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4
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Zhu C, Zheng M, Ali U, Xia Q, Wang Z, Chenlong, Yao L, Chen Y, Yan J, Wang K, Chen J, Zhang X. Association Between Abundance of Haemophilus in the Gut Microbiota and Negative Symptoms of Schizophrenia. Front Psychiatry 2021; 12:685910. [PMID: 34393849 PMCID: PMC8362742 DOI: 10.3389/fpsyt.2021.685910] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Accepted: 06/28/2021] [Indexed: 12/31/2022] Open
Abstract
Increasing evidence indicates an interaction between dysbiosis of the microbiota and the pathogenesis of schizophrenia. However, limited information is available on the specific microbial communities associated with symptoms of schizophrenia. Therefore, this study aimed to investigate gut microbiota dysbiosis and its relationship with psychopathologies in schizophrenia. We recruited 126 participants and divided them into three groups according to the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition, criteria-acute group (patients with acute schizophrenia), remission group (patients with schizophrenia in remission), and control group (healthy controls). Psychotic symptoms were evaluated using the Positive and Negative Syndrome Scale. Microbiota compositions, diversity and community structure were evaluated using 16S rRNA sequencing. Pearson's correlation analysis was used to evaluate the association between bacterial taxa and psychotic symptoms. The beta-diversity of microbiota composition in the acute group was distinct from that in the remission and control groups (PC1 = 21.11% vs. PC2 = 12.86%, P = 0.021). Furthermore, Pearson's correlation analysis revealed that abundance of Haemophilus was positively correlated with negative psychiatric symptoms (r = 0.303, P = 0.021), while abundance of Coprococcus was negatively correlated with negative psychiatric symptoms (r = -0.285, P = 0.025). Moreover, abundance of Haemophilus was positively correlated with cognition (r = 0.428, P = 0.009), excitement (r = 0.266, P = 0.037), and depression (r = 0.295, P = 0.020). The study findings suggest that alterations in certain gut microbiota may interfere with psychological symptoms in schizophrenia. Our results provide evidence that may help in the development of therapeutic strategies using microbial-based targets. The data that support the findings of this study have been deposited in the NCBI (https://submit.ncbi.nlm.nih.gov/) with accession number SUB9453991.
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Affiliation(s)
- Cuizhen Zhu
- Department of Science and Education, Affiliated Psychological Hospital of Anhui Medical University, Hefei, China.,Anhui Clinical Center for Mental and Psychological Diseases, Hefei Fourth People's Hospital, Hefei, China.,Anhui Mental Health Center, Hefei, China
| | - Mingming Zheng
- Department of Science and Education, Affiliated Psychological Hospital of Anhui Medical University, Hefei, China.,Anhui Clinical Center for Mental and Psychological Diseases, Hefei Fourth People's Hospital, Hefei, China.,Anhui Mental Health Center, Hefei, China
| | - Usman Ali
- Shanghai key Laboratory of Psychotic Disorders, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Qingrong Xia
- Department of Science and Education, Affiliated Psychological Hospital of Anhui Medical University, Hefei, China.,Anhui Clinical Center for Mental and Psychological Diseases, Hefei Fourth People's Hospital, Hefei, China.,Anhui Mental Health Center, Hefei, China
| | - Zhongxian Wang
- Department of Science and Education, Affiliated Psychological Hospital of Anhui Medical University, Hefei, China
| | - Chenlong
- Department of Science and Education, Affiliated Psychological Hospital of Anhui Medical University, Hefei, China.,Anhui Clinical Center for Mental and Psychological Diseases, Hefei Fourth People's Hospital, Hefei, China.,Anhui Mental Health Center, Hefei, China
| | - Lihui Yao
- Department of Science and Education, Affiliated Psychological Hospital of Anhui Medical University, Hefei, China
| | - Yuanyuan Chen
- Department of Science and Education, Affiliated Psychological Hospital of Anhui Medical University, Hefei, China
| | - Junwei Yan
- Department of Science and Education, Affiliated Psychological Hospital of Anhui Medical University, Hefei, China.,Anhui Clinical Center for Mental and Psychological Diseases, Hefei Fourth People's Hospital, Hefei, China.,Anhui Mental Health Center, Hefei, China
| | - Keming Wang
- Department of Science and Education, Affiliated Psychological Hospital of Anhui Medical University, Hefei, China.,Anhui Clinical Center for Mental and Psychological Diseases, Hefei Fourth People's Hospital, Hefei, China.,Anhui Mental Health Center, Hefei, China
| | - Jinghong Chen
- Shanghai key Laboratory of Psychotic Disorders, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xulai Zhang
- Department of Science and Education, Affiliated Psychological Hospital of Anhui Medical University, Hefei, China.,Anhui Clinical Center for Mental and Psychological Diseases, Hefei Fourth People's Hospital, Hefei, China.,Anhui Mental Health Center, Hefei, China
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5
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Rattigan R, O’Doherty JV, Vigors S, Ryan MT, Sebastiano RS, Callanan JJ, Thornton K, Rajauria G, Margassery LM, Dobson ADW, O’Leary ND, Sweeney T. The Effects of the Marine-Derived Polysaccharides Laminarin and Chitosan on Aspects of Colonic Health in Pigs Challenged with Dextran Sodium Sulphate. Mar Drugs 2020; 18:md18050262. [PMID: 32429425 PMCID: PMC7281012 DOI: 10.3390/md18050262] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Revised: 05/11/2020] [Accepted: 05/14/2020] [Indexed: 02/06/2023] Open
Abstract
This study examined the effects of dietary supplementation with laminarin or chitosan on colonic health in pigs challenged with dextran sodium sulphate (DSS). Weaned pigs were assigned to: (1) a basal diet (n = 22); (2) a basal diet + laminarin (n = 10); and (3) a basal diet + chitosan (n = 10). On d35, the basal group was split, creating four groups: (1) the basal diet (control); (2) the basal diet + DSS; (3) the basal diet + laminarin + DSS; and (4) the basal diet + chitosan + DSS. From d39-42, the pigs were orally challenged with DSS. On d44, colonic tissue/digesta samples were collected. The basal DSS group had reduced growth, higher pathology score and an increased expression of MMP1, IL13 and IL23 compared with the controls (p < 0.05); these parameters were similar between the DSS-challenged groups (p > 0.05). In the basal DSS group, the relative abundance of beneficial taxa including Prevotella and Roseburia were reduced while Escherichia/Shigella were increased, compared with the controls (p < 0.05). The relative abundance of Escherichia/Shigella was reduced and the molar proportions of acetate were increased in the laminarin DSS group compared with the basal DSS group (p < 0.01), suggesting that laminarin has potential to prevent pathogen proliferation and enhance the volatile fatty acid profile in the colon in a porcine model of colitis.
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Affiliation(s)
- Ruth Rattigan
- School of Agriculture and Food Science, University College Dublin, Belfield, Dublin 4 D04 V1W8, Ireland; (R.R.); (J.V.O.); (S.V.); (G.R.)
| | - John V. O’Doherty
- School of Agriculture and Food Science, University College Dublin, Belfield, Dublin 4 D04 V1W8, Ireland; (R.R.); (J.V.O.); (S.V.); (G.R.)
| | - Stafford Vigors
- School of Agriculture and Food Science, University College Dublin, Belfield, Dublin 4 D04 V1W8, Ireland; (R.R.); (J.V.O.); (S.V.); (G.R.)
| | - Marion T. Ryan
- School of Veterinary Medicine, University College Dublin, Belfield, Dublin 4 D04 V1W8, Ireland; (M.T.R.); (R.S.S.); (K.T.)
| | - Rocco S. Sebastiano
- School of Veterinary Medicine, University College Dublin, Belfield, Dublin 4 D04 V1W8, Ireland; (M.T.R.); (R.S.S.); (K.T.)
| | - John J. Callanan
- Ross University School of Veterinary Medicine, St. Kitts, West Indies;
| | - Kevin Thornton
- School of Veterinary Medicine, University College Dublin, Belfield, Dublin 4 D04 V1W8, Ireland; (M.T.R.); (R.S.S.); (K.T.)
| | - Gaurav Rajauria
- School of Agriculture and Food Science, University College Dublin, Belfield, Dublin 4 D04 V1W8, Ireland; (R.R.); (J.V.O.); (S.V.); (G.R.)
| | - Lekha M. Margassery
- School of Microbiology, University College Cork, Cork City T12 YN60, Ireland; (L.M.M.); (A.D.W.D.); (N.D.O.)
| | - Alan D. W. Dobson
- School of Microbiology, University College Cork, Cork City T12 YN60, Ireland; (L.M.M.); (A.D.W.D.); (N.D.O.)
- Environmental Research Institute, University College Cork, Cork City T12 YN60, Ireland
| | - Niall D. O’Leary
- School of Microbiology, University College Cork, Cork City T12 YN60, Ireland; (L.M.M.); (A.D.W.D.); (N.D.O.)
- Environmental Research Institute, University College Cork, Cork City T12 YN60, Ireland
| | - Torres Sweeney
- School of Veterinary Medicine, University College Dublin, Belfield, Dublin 4 D04 V1W8, Ireland; (M.T.R.); (R.S.S.); (K.T.)
- Correspondence: ; Tel.: +353-(0)17166244
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6
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Rodríguez-Rabassa M, López P, Sánchez R, Hernández C, Rodríguez C, Rodríguez-Santiago RE, Orengo JC, Green V, Yamamura Y, Rivera-Amill V. Inflammatory Biomarkers, Microbiome, Depression, and Executive Dysfunction in Alcohol Users. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17030689. [PMID: 31973090 PMCID: PMC7037324 DOI: 10.3390/ijerph17030689] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Revised: 01/11/2020] [Accepted: 01/13/2020] [Indexed: 02/07/2023]
Abstract
Alcohol-related disorders (ARD) are highly prevalent among Latin American-Caribbean countries. Mental disorders are common comorbidities in individuals with ARD. However, the etiology of the association between ARD and mental disorders remains unclear. We examined the association of inflammatory cytokines, microbiome, and other biomakers with measures of depression, social anxiety, and executive functions. We observed a significant increase in cytokine and chemokine expression levels in saliva and plasma in the alcohol group (AG) samples. Also, the salivary bacterial composition in the AG revealed an abundance of Prevotella. Depression symptomatology was markedly higher in the AG, but social anxiety levels were negligible. AG also exhibited executive dysfunctions, which negatively correlated with increased plasma levels of pro-inflammatory cytokines and increased salivary concentrations of Prevotella bacteria. Our study suggests that chronic alcohol use correlates with executive dysfunction, immune system dysregulation, and dysbiosis of the salivary microbiota. Additional studies are needed to understand the role of the microbiome and inflammation in alcohol use and mental comorbidities.
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Affiliation(s)
- Mary Rodríguez-Rabassa
- Center for Research Resources, Ponce Health Sciences University-Ponce Research Institute, Ponce, PR 00716-2348, USA; (M.R.-R.); (P.L.); (R.S.); (R.E.R.-S.); (Y.Y.)
- Clinical Psychology Program, Ponce Health Sciences University-Ponce Research Institute, Ponce, PR 00716-2348, USA; (C.H.); (C.R.)
| | - Pablo López
- Center for Research Resources, Ponce Health Sciences University-Ponce Research Institute, Ponce, PR 00716-2348, USA; (M.R.-R.); (P.L.); (R.S.); (R.E.R.-S.); (Y.Y.)
| | - Raphael Sánchez
- Center for Research Resources, Ponce Health Sciences University-Ponce Research Institute, Ponce, PR 00716-2348, USA; (M.R.-R.); (P.L.); (R.S.); (R.E.R.-S.); (Y.Y.)
| | - Cyanela Hernández
- Clinical Psychology Program, Ponce Health Sciences University-Ponce Research Institute, Ponce, PR 00716-2348, USA; (C.H.); (C.R.)
| | - Cesarly Rodríguez
- Clinical Psychology Program, Ponce Health Sciences University-Ponce Research Institute, Ponce, PR 00716-2348, USA; (C.H.); (C.R.)
| | - Ronald E. Rodríguez-Santiago
- Center for Research Resources, Ponce Health Sciences University-Ponce Research Institute, Ponce, PR 00716-2348, USA; (M.R.-R.); (P.L.); (R.S.); (R.E.R.-S.); (Y.Y.)
| | - Juan C. Orengo
- Public Health Program, Ponce Health Sciences University-Ponce Research Institute, Ponce, PR 00716-2348, USA; (J.C.O.); (V.G.)
| | - Vivian Green
- Public Health Program, Ponce Health Sciences University-Ponce Research Institute, Ponce, PR 00716-2348, USA; (J.C.O.); (V.G.)
| | - Yasuhiro Yamamura
- Center for Research Resources, Ponce Health Sciences University-Ponce Research Institute, Ponce, PR 00716-2348, USA; (M.R.-R.); (P.L.); (R.S.); (R.E.R.-S.); (Y.Y.)
| | - Vanessa Rivera-Amill
- Center for Research Resources, Ponce Health Sciences University-Ponce Research Institute, Ponce, PR 00716-2348, USA; (M.R.-R.); (P.L.); (R.S.); (R.E.R.-S.); (Y.Y.)
- Correspondence: ; Tel.: +1-(787)-841-5150; Fax: +1-(787)-841-5159
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7
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Lu L, Li W, Sun C, Kang S, Li J, Luo X, Su Q, Liu B, Qin S. Phycocyanin Ameliorates Radiation-Induced Acute Intestinal Toxicity by Regulating the Effect of the Gut Microbiota on the TLR4/Myd88/NF-κB Pathway. JPEN J Parenter Enteral Nutr 2019; 44:1308-1317. [PMID: 31769063 DOI: 10.1002/jpen.1744] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Accepted: 10/25/2019] [Indexed: 12/17/2022]
Abstract
BACKGROUND Radiation-induced gastrointestinal syndrome, including nausea, diarrhea, and dehydration, contributes to morbidity and mortality after medical or industrial radiation exposure, which seriously affects patient quality of life after treatment. No safe and effective radiation countermeasure has been approved for clinical therapy. In this study, we aimed to investigate the potential protective effects of phycocyanin (PC) against radiation-induced acute intestinal injury. MATERIALS AND METHODS C57BL/6 mice were orally administered 50 mg/kg PC once per day for 1 month before exposure to total-abdominal x-ray irradiation at a single dose of 12 Gy. The effects of PC on intestinal histopathology and integrity, gut microbiota, lipopolysaccharides (LPS), inflammatory cytokines, and Toll-like receptor 4 (TLR4)/myeloid differentiation factor 88 (Myd88)/nuclear factor κB (NF-κB) signaling were evaluated. RESULTS Severe histopathological damage, such as intestinal mucosal epithelial cell apoptosis, necrosis, and nuclear rupture, was most clearly observed 24 hours after total-abdominal x-ray irradiation. Intestinal integrity was damaged by irradiation, which manifested in reduced levels of the tight-junction proteins Claudin-1, Occludin, and zonula occludens-1(ZO-1). PC pretreatment significantly ameliorated radiation-induced intestinal injury. PC also modulated the gut microbiota composition, increasing the proportion of beneficial bacteria and decreasing that of harmful bacteria, which in turn lowered LPS levels and suppressed TLR4/Myd88/NF-κB pathway activation. Finally, levels of corresponding inflammatory cytokines, including tumor necrosis factor α and interleukin-6, were also downregulated. CONCLUSION PC protects against mouse intestinal injury from high-dose radiation by regulating the effect of the gut microbiota on the TLR4/Myd88/NF-κB pathway, suggesting PC as a promising natural radiation countermeasure.
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Affiliation(s)
- Lina Lu
- School of Nuclear Science and Technology, Lanzhou University, Lanzhou, Gansu, China.,School of Chemical Engineering, Northwest Minzu University, Lanzhou, Gansu, China
| | - Wenjun Li
- Key Laboratory of Biology and Bioresource Utilization, Yantai Institute of Costal Zone Research, Chinese Academy of Sciences, Yantai, China.,Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, China
| | - Chao Sun
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China
| | - Shuhe Kang
- Key Laboratory of Biology and Bioresource Utilization, Yantai Institute of Costal Zone Research, Chinese Academy of Sciences, Yantai, China
| | - Jia Li
- Key Laboratory of Biology and Bioresource Utilization, Yantai Institute of Costal Zone Research, Chinese Academy of Sciences, Yantai, China
| | - Xingping Luo
- Key Laboratory of Biology and Bioresource Utilization, Yantai Institute of Costal Zone Research, Chinese Academy of Sciences, Yantai, China
| | - Qiong Su
- Key Laboratory of Biology and Bioresource Utilization, Yantai Institute of Costal Zone Research, Chinese Academy of Sciences, Yantai, China
| | - Bin Liu
- School of Nuclear Science and Technology, Lanzhou University, Lanzhou, Gansu, China.,School of Stomatology, Lanzhou University, Lanzhou, Gansu, China
| | - Song Qin
- School of Chemical Engineering, Northwest Minzu University, Lanzhou, Gansu, China.,Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, China
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8
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Hart ML, Ericsson AC, Lloyd KCK, Grimsrud KN, Rogala AR, Godfrey VL, Nielsen JN, Franklin CL. Development of outbred CD1 mouse colonies with distinct standardized gut microbiota profiles for use in complex microbiota targeted studies. Sci Rep 2018; 8:10107. [PMID: 29973630 PMCID: PMC6031694 DOI: 10.1038/s41598-018-28448-0] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Accepted: 06/22/2018] [Indexed: 02/08/2023] Open
Abstract
Studies indicate that the gut microbiota (GM) can significantly influence both local and systemic host physiologic processes. With rising concern for optimization of experimental reproducibility and translatability, it is essential to consider the GM in study design. However, GM profiles can vary between rodent producers making consistency between models challenging. To circumvent this, we developed outbred CD1 mouse colonies with stable, complex GM profiles that can be used as donors for a variety of GM transfer techniques including rederivation, co-housing, cross-foster, and fecal microbiota transfer (FMT). CD1 embryos were surgically transferred into CD1 or C57BL/6 surrogate dams that varied by GM composition and complexity to establish four separate mouse colonies harboring GM profiles representative of contemporary mouse producers. Using targeted 16S rRNA amplicon sequencing, subsequent female offspring were found to have similar GM profiles to surrogate dams. Furthermore, breeding colonies of CD1 mice with distinct GM profiles were maintained for nine generations, demonstrating GM stability within these colonies. To confirm GM stability, we shipped cohorts of these four colonies to collaborating institutions and found no significant variation in GM composition. These mice are an invaluable experimental resource that can be used to investigate GM effects on mouse model phenotype.
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Affiliation(s)
- Marcia L Hart
- Comparative Medicine Program, University of Missouri, Columbia, Missouri, United States of America.,University of Missouri Metagenomics Center, University of Missouri, Columbia, Missouri, United States of America.,Department of Veterinary Pathobiology, University of Missouri, Columbia, Missouri, United States of America
| | - Aaron C Ericsson
- Comparative Medicine Program, University of Missouri, Columbia, Missouri, United States of America.,University of Missouri Metagenomics Center, University of Missouri, Columbia, Missouri, United States of America.,Department of Veterinary Pathobiology, University of Missouri, Columbia, Missouri, United States of America.,Mutant Mouse Resource and Research Center, University of Missouri, Columbia, Missouri, United States of America
| | - K C Kent Lloyd
- Mouse Biology Program, University of California, Davis, California, United States of America.,Mutant Mouse Resource and Research Center, University of California, Davis, California, United States of America.,Mouse Metabolic Phenotyping Center, University of California, Davis, California, United States of America
| | - Kristin N Grimsrud
- Mouse Biology Program, University of California, Davis, California, United States of America.,Mutant Mouse Resource and Research Center, University of California, Davis, California, United States of America
| | - Allison R Rogala
- Department of Pathology and Laboratory Medicine, University of North Carolina, Chapel Hill, North Carolina, United States of America.,National Gnotobiotic Rodent Resource Center, University of North Carolina, Chapel Hill, North Carolina, United States of America.,Center for Gastrointestinal Biology and Disease, University of North Carolina, Chapel Hill, North Carolina, United States of America
| | - Virginia L Godfrey
- Department of Pathology and Laboratory Medicine, University of North Carolina, Chapel Hill, North Carolina, United States of America.,Mutant Mouse Resource and Research Center, University of North Carolina, Chapel Hill, North Carolina, United States of America
| | - Judith N Nielsen
- Department of Pathology and Laboratory Medicine, University of North Carolina, Chapel Hill, North Carolina, United States of America
| | - Craig L Franklin
- Comparative Medicine Program, University of Missouri, Columbia, Missouri, United States of America. .,University of Missouri Metagenomics Center, University of Missouri, Columbia, Missouri, United States of America. .,Department of Veterinary Pathobiology, University of Missouri, Columbia, Missouri, United States of America. .,Mutant Mouse Resource and Research Center, University of Missouri, Columbia, Missouri, United States of America.
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9
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Rabbi MF, Eissa N, Munyaka PM, Kermarrec L, Elgazzar O, Khafipour E, Bernstein CN, Ghia JE. Reactivation of Intestinal Inflammation Is Suppressed by Catestatin in a Murine Model of Colitis via M1 Macrophages and Not the Gut Microbiota. Front Immunol 2017; 8:985. [PMID: 28871257 PMCID: PMC5566981 DOI: 10.3389/fimmu.2017.00985] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2017] [Accepted: 08/02/2017] [Indexed: 12/22/2022] Open
Abstract
While there is growing awareness of a relationship between chromogranin-A (CHGA) and susceptibility to inflammatory conditions, the role of human catestatin [(hCTS); CHGA352–67] in the natural history of established inflammatory bowel disease is not known. Recently, using two different experimental models, we demonstrated that hCTS-treated mice develop less severe acute colitis. We have also shown the implication of the macrophages in this effect. The aims of this study were to determine (1) whether hCTS treatment could attenuate the reactivation of inflammation in adult mice with previously established chronic colitis; (2) whether this effect is mediated through macrophages or the gut microbiota. Quiescent colitis was induced in 7–8-week-old C57BL6 mice using four cycles (2–4%) of dextran sulfate sodium. hCTS (1.5 mg/kg/day) treatment or vehicle started 2 days before the last induction of colitis and continuing for 7 days. At sacrifice, macro- and microscopic scores were determined. Colonic pro-inflammatory cytokines [interleukin (IL)-6, IL-1β, and TNF- α], anti-inflammatory cytokines (IL-10, TGF- β), classically activated (M1) (iNOS, Mcp1), and alternatively activated (M2) (Ym1, Arg1) macrophages markers were studied using ELISA and/or RT-qPCR. In vitro, peritoneal macrophages isolated from naïve mice and treated with hCTS (10−5 M, 12 h) were exposed to either lipopolysaccharide (100 ng/ml, 12 h) to polarize M1 macrophages or to IL-4/IL-13 (20 ng/ml) to polarize M2 macrophages. M1/M2 macrophage markers along with cytokine gene expression were determined using RT-qPCR. Feces and mucosa-associated microbiota (MAM) samples were collected, and the V4 region of 16 s rRNA was sequenced. Micro- and macroscopic scores, colonic IL-6, IL-1β, TNF- α, and M1 macrophages markers were significantly decreased in the hCTS-treated group. Treatment did not have any effect on colonic IL-10, TGF-β, and M2 markers nor modified the bacterial richness, diversity, or the major phyla in colitic fecal and MAM samples. In vitro, pro-inflammatory cytokines levels, as well as their gene expression, were significantly reduced in hCTS-treated M1 macrophages. hCTS treatment did not affect M2 macrophage markers. These findings suggest that hCTS treatment attenuates the severity of inflammatory relapse through the modulation of the M1 macrophages and the release of pro-inflammatory cytokines.
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Affiliation(s)
- Mohammad F Rabbi
- Department of Immunology, University of Manitoba, Winnipeg, MB, Canada.,The Children Research Hospital Research Institute of Manitoba, University of Manitoba, Winnipeg, MB, Canada
| | - Nour Eissa
- Department of Immunology, University of Manitoba, Winnipeg, MB, Canada.,The Children Research Hospital Research Institute of Manitoba, University of Manitoba, Winnipeg, MB, Canada
| | - Peris M Munyaka
- Department of Animal Sciences, University of Manitoba, Winnipeg, MB, Canada
| | | | - Omar Elgazzar
- Department of Immunology, University of Manitoba, Winnipeg, MB, Canada
| | - Ehsan Khafipour
- Department of Animal Sciences, University of Manitoba, Winnipeg, MB, Canada.,Department of Medical Microbiology, University of Manitoba, Winnipeg, MB, Canada
| | - Charles N Bernstein
- Department of Internal Medicine, Section of Gastroenterology, University of Manitoba, Winnipeg, MB, Canada.,Inflammatory Bowel Disease Clinical and Research Centre, University of Manitoba, Winnipeg, MB, Canada
| | - Jean Eric Ghia
- Department of Immunology, University of Manitoba, Winnipeg, MB, Canada.,The Children Research Hospital Research Institute of Manitoba, University of Manitoba, Winnipeg, MB, Canada.,Department of Internal Medicine, Section of Gastroenterology, University of Manitoba, Winnipeg, MB, Canada.,Inflammatory Bowel Disease Clinical and Research Centre, University of Manitoba, Winnipeg, MB, Canada
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10
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Relative Abundance of Streptococcus spp. and its Association with Disease Activity in Inflammatory Bowel Disease Patients Compared with Controls. ARCHIVES OF CLINICAL INFECTIOUS DISEASES 2017. [DOI: 10.5812/archcid.57291] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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11
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Rabbi MF, Munyaka PM, Eissa N, Metz-Boutigue MH, Khafipour E, Ghia JE. Human Catestatin Alters Gut Microbiota Composition in Mice. Front Microbiol 2017; 7:2151. [PMID: 28144234 PMCID: PMC5239785 DOI: 10.3389/fmicb.2016.02151] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Accepted: 12/20/2016] [Indexed: 12/19/2022] Open
Abstract
The mammalian intestinal tract is heavily colonized with a dense, complex, and diversified microbial populations. In healthy individuals, an array of epithelial antimicrobial agents is secreted in the gut to aid intestinal homeostasis. Enterochromaffin cells (EC) in the intestinal epithelium are a major source of chromogranin A (CgA), which is a pro-hormone and can be cleaved into many bioactive peptides that include catestatin (CST). This study was carried out to evaluate the possible impact of CST on gut microbiota in vivo using a mouse model. The CST (Human CgA352−372) or normal saline was intrarectally administered in C57BL/6 male mice for 6 days and then sacrificed. Feces and colonic mucosa tissue samples were collected, DNA was extracted, the V4 region of bacterial 16S rRNA gene was amplified and subjected to MiSeq Illumina sequencing. The α-diversity was calculated using Chao 1 and β-diversity was determined using QIIME. Differences at the genus level were determined using partial least square discriminant analysis (PLS-DA). Phylogenetic investigation of communities by reconstruction of unobserved states (PICRUSt) was used to predict functional capacity of bacterial community. CST treatment did not modify bacterial richness in fecal and colonic mucosa-associated microbiota; however, treatment significantly modified bacterial community composition between the groups. Also, CST-treated mice had a significantly lower relative abundance of Firmicutes and higher abundance of Bacteroidetes, observed only in fecal samples. However, at lower phylogenetic levels, PLS-DA analysis revealed that some bacterial taxa were significantly associated with the CST-treated mice in both fecal and colonic mucosa samples. In addition, differences in predicted microbial functional pathways in both fecal and colonic mucosa samples were detected. The results support the hypothesis that CST treatment modulates gut microbiota composition under non-pathophysiological conditions, however, the result of this study needs to be further validated in a larger experiment. The data may open new avenues for the development of a potential new line of antimicrobial peptides and their use as therapeutic agents to treat several inflammatory conditions of the gastrointestinal tract, such as inflammatory bowel disease (IBD), inflammatory bowel syndrome (IBS), or other health conditions.
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Affiliation(s)
- Mohammad F Rabbi
- Department of Immunology, University of Manitoba Winnipeg, MB, Canada
| | - Peris M Munyaka
- Department of Immunology, University of ManitobaWinnipeg, MB, Canada; Department of Animal Sciences, University of ManitobaWinnipeg, MB, Canada
| | - Nour Eissa
- Department of Immunology, University of Manitoba Winnipeg, MB, Canada
| | - Marie-Hélène Metz-Boutigue
- Biomaterials and Tissue Engineering, Institut National de la Santé et de la Recherche Médicale Strasbourg, France
| | - Ehsan Khafipour
- Department of Animal Sciences, University of ManitobaWinnipeg, MB, Canada; Department of Medical Microbiology, University of ManitobaWinnipeg, MB, Canada; The Children's Hospital Research Institute of ManitobaWinnipeg, MB, Canada
| | - Jean Eric Ghia
- Department of Immunology, University of ManitobaWinnipeg, MB, Canada; The Children's Hospital Research Institute of ManitobaWinnipeg, MB, Canada; Section of Gastroenterology, Department of Internal Medicine, University of ManitobaWinnipeg, MB, Canada; Inflammatory Bowel Disease Clinical and Research Centre, University of ManitobaWinnipeg, MB, Canada
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12
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Siczek K, Zatorski H, Chmielowiec-Korzeniowska A, Kordek R, Tymczyna L, Fichna J. Evaluation of anti-inflammatory effect of silver-coated glass beads in mice with experimentally induced colitis as a new type of treatment in inflammatory bowel disease. Pharmacol Rep 2017; 69:386-392. [PMID: 28267639 DOI: 10.1016/j.pharep.2017.01.003] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2016] [Accepted: 01/09/2017] [Indexed: 12/31/2022]
Abstract
BACKGROUND Recent studies point at the anti-inflammatory action of silver through induction of apoptosis of inflammatory cells via oxidative stress, promotion of wound healing as well as antimicrobial effect. Our aim was to design a new formulation based on silver and validate its anti-inflammatory activity in the mouse models of colitis. METHODS Silver-coated glass beads were prepared using a magnetron sputtering method and a standard magnetron sputtering gun equipped with pure silver target. Colitis was induced by the ic administration of TNBS into colon (to mimic Crohn's disease) and addition of DSS to drinking water (to imitate ulcerative colitis). Evaluation of inflammation was performed based on macroscopic and microscopic scoring, quantification of the myeloperoxidase activity and colonic microflora analysis. RESULTS Silver-coated glass beads administered ic alleviated intestinal inflammation in mouse models of colitis, induced by TNBS and DSS. This alleviation of colitis resulted principally from changes in the gut microflora. The anti-inflammatory action of the new formulation was associated predominantly with the presence of the silver nanolayer on the beads, and to a lesser extent the size of glass polymer units. CONCLUSIONS The application of the newly developed formulation employing silver-coated glass beads has the potential to be translated to clinical conditions for the efficient treatment of IBD.
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Affiliation(s)
- Krzysztof Siczek
- Department of Biochemistry, Faculty of Medicine, Medical University of Lodz, Łódź, Poland; Department of Vehicles and Fundamentals of Machine Design, Faculty of Mechanical Engineering, Lodz University of Technology, Łódź, Poland
| | - Hubert Zatorski
- Department of Biochemistry, Faculty of Medicine, Medical University of Lodz, Łódź, Poland
| | - Anna Chmielowiec-Korzeniowska
- Department of Animal Hygiene and Environment, Faculty of Biology and Animal Breeding, University of Agriculture in Lublin, Lublin, Poland
| | - Radzisław Kordek
- Department of Pathology, Faculty of Medicine, Medical University of Lodz, Łódź, Poland
| | - Leszek Tymczyna
- Department of Animal Hygiene and Environment, Faculty of Biology and Animal Breeding, University of Agriculture in Lublin, Lublin, Poland
| | - Jakub Fichna
- Department of Biochemistry, Faculty of Medicine, Medical University of Lodz, Łódź, Poland.
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13
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Rahmouni O, Dubuquoy L, Desreumaux P, Neut C. Microbiote intestinal et développement des maladies inflammatoires chroniques de l’intestin. Med Sci (Paris) 2016; 32:968-973. [DOI: 10.1051/medsci/20163211012] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
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14
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Ahmed I, Roy BC, Khan SA, Septer S, Umar S. Microbiome, Metabolome and Inflammatory Bowel Disease. Microorganisms 2016; 4:microorganisms4020020. [PMID: 27681914 PMCID: PMC5029486 DOI: 10.3390/microorganisms4020020] [Citation(s) in RCA: 126] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2016] [Revised: 05/25/2016] [Accepted: 06/06/2016] [Indexed: 12/17/2022] Open
Abstract
Inflammatory Bowel Disease (IBD) is a multifactorial disorder that conceptually occurs as a result of altered immune responses to commensal and/or pathogenic gut microbes in individuals most susceptible to the disease. During Crohn’s Disease (CD) or Ulcerative Colitis (UC), two components of the human IBD, distinct stages define the disease onset, severity, progression and remission. Epigenetic, environmental (microbiome, metabolome) and nutritional factors are important in IBD pathogenesis. While the dysbiotic microbiota has been proposed to play a role in disease pathogenesis, the data on IBD and diet are still less convincing. Nonetheless, studies are ongoing to examine the effect of pre/probiotics and/or FODMAP reduced diets on both the gut microbiome and its metabolome in an effort to define the healthy diet in patients with IBD. Knowledge of a unique metabolomic fingerprint in IBD could be useful for diagnosis, treatment and detection of disease pathogenesis.
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Affiliation(s)
- Ishfaq Ahmed
- Department of Surgery, University of Kansas Medical Center, 3901 Rainbow Blvd, 4028 Wahl Hall East, Kansas City, KS 66160, USA.
| | - Badal C Roy
- Department of Surgery, University of Kansas Medical Center, 3901 Rainbow Blvd, 4028 Wahl Hall East, Kansas City, KS 66160, USA.
| | - Salman A Khan
- Department of Internal Medicine and Department of Pediatrics, University of Missouri, Kansas City, MO 64110, USA.
| | - Seth Septer
- Department of Internal Medicine and Department of Pediatrics, University of Missouri, Kansas City, MO 64110, USA.
| | - Shahid Umar
- Department of Surgery, University of Kansas Medical Center, 3901 Rainbow Blvd, 4028 Wahl Hall East, Kansas City, KS 66160, USA.
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15
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Lopetuso LR, Petito V, Zambrano D, Orlando D, Dal Lago A, Serrichhio L, Papa A, Gasbarrini A, Scaldaferri F. Gut Microbiota: A Key Modulator of Intestinal Healing in Inflammatory Bowel Disease. Dig Dis 2016; 34:202-9. [PMID: 27028023 DOI: 10.1159/000444460] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Mucosal healing (MH) represents a crucial factor for maintaining gut homeostasis. Indeed, in inflammatory bowel disease, MH has become the standard therapeutical target, because it is associated with more effective disease control, more frequent steroid-free remission, lower rates of hospitalization and surgery, and improved quality of life. In this scenario, gut microbiota is a crucial player in modulating intestinal repair and regeneration process. It can act on the tumor necrosis factor-α production, modulation of reactive oxygen and nitrogen species, activity of matrix metalloproteinases and on many other mechanisms strictly involved in restoring gut health. In this review, we analyze and review the literature on the role of gut microbiota in sustaining mucosal injury and achieving MH.
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Affiliation(s)
- L R Lopetuso
- Internal Medicine Department, Gastroenterology Division, Catholic University of Sacred Hearth, Rome, Italy
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16
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Caffarelli C, Santamaria F, Cesari S, Sciorio E, Povesi-Dascola C, Bernasconi S. Advances in pediatrics in 2014: current practices and challenges in allergy, gastroenterology, infectious diseases, neonatology, nutrition, oncology and respiratory tract illnesses. Ital J Pediatr 2015; 41:84. [PMID: 26518317 PMCID: PMC4628263 DOI: 10.1186/s13052-015-0193-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2015] [Accepted: 10/20/2015] [Indexed: 11/27/2022] Open
Abstract
Major advances in the conduct of pediatric practice have been reported in the Italian Journal of Pediatrics in 2014. This review highlights developments in allergy, gastroenterology, infectious diseases, neonatology, nutrition, oncology and respiratory tract illnesses. Investigations endorse a need to better educate guardians and improve nutritional management in food allergy. Management of hyperbilirubinemia in neonates and of bronchiolitis have been improved by position statements of scientific societies. Novel treatments for infant colic and inflammatory bowel diseases have emerged. Studies suggest the diagnostic utility of ultrasonography in diagnosing community-acquired pneumonia. Progress in infectious diseases should include the universal varicella vaccination of children. Recommendations on asphyxia and respiratory distress syndrome have been highlighted in neonatology. Studies have evidenced that malnutrition remains a common underestimated problem in developing countries, while exposure to cancer risk factors in children is not negligible in Western countries. Advances in our understanding of less common diseases such as cystic fibrosis, plastic bronchitis, idiopathic pulmonary hemosiderosis facilitate diagnosis and management. Researches have led to new therapeutic approaches in patent ductus arteriosus and pediatric malignancies.
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Affiliation(s)
- Carlo Caffarelli
- Clinica Pediatrica, Department of Clinical and Experimental Medicine, University of Parma, Parma, Italy.
| | - Francesca Santamaria
- Department of Translational Medical Sciences, Federico II University, Naples, Italy.
| | - Silvia Cesari
- Clinica Pediatrica, Department of Clinical and Experimental Medicine, University of Parma, Parma, Italy.
| | - Elisa Sciorio
- Department of Translational Medical Sciences, Federico II University, Naples, Italy.
| | - Carlotta Povesi-Dascola
- Clinica Pediatrica, Department of Clinical and Experimental Medicine, University of Parma, Parma, Italy.
| | - Sergio Bernasconi
- Pediatrics Honorary Member University Faculty, "G D' Annunzio" University of Chieti Pescara, Chieti, Italy.
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17
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Ferguson LR. Nutritional Modulation of Gene Expression: Might This be of Benefit to Individuals with Crohn's Disease? Front Immunol 2015; 6:467. [PMID: 26441972 PMCID: PMC4566049 DOI: 10.3389/fimmu.2015.00467] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2015] [Accepted: 08/27/2015] [Indexed: 12/18/2022] Open
Abstract
The incidence of inflammatory bowel diseases (IBD), including Crohn's disease (CD), is increasing worldwide, especially in young children and adolescents. Although hospitalized patients are usually provided with enteral or parenteral support, continuing care typically requires a trial-and-error approach to suppressing symptoms and maintaining disease remission. Current nutritional advice does not differ from general population guidelines. International collaborative studies have revealed 163 distinct genetic loci affecting susceptibility to IBD, in some of which host-microbe interactions can be seen to play an important role. The nature of these loci enables a rationale for predicting nutritional requirements that may not be evident through standard therapeutic approaches. Certain recognized nutrients, such as vitamin D and long-chain omega-3 polyunsaturated fatty acids, may be required at higher than anticipated levels. Various phytochemicals, not usually considered in the same class as classic nutrients, could play an important role. Prebiotics and probiotics may also be beneficial. Genomic approaches enable proof of principle of nutrient optimization rather than waiting for disease symptoms to appear and/or progress. We suggest a paradigm shift in diagnostic tools and nutritional therapy for CD, involving a systems biology approach for implementation.
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Affiliation(s)
- Lynnette R Ferguson
- Discipline of Nutrition and Dietetics, Faculty of Medical and Health Sciences, The University of Auckland , Auckland , New Zealand ; Auckland Cancer Society Research Centre, Faculty of Medical and Health Sciences, The University of Auckland , Auckland , New Zealand
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18
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Zhang Y, Wang Y, Zhang F, Wang K, Liu G, Yang M, Luan Y, Zhao Z, Zhang J, Cao X, Zhang D. Allyl methyl disulfide inhibits IL-8 and IP-10 secretion in intestinal epithelial cells via the NF-кB signaling pathway. Int Immunopharmacol 2015; 27:156-63. [PMID: 26003845 DOI: 10.1016/j.intimp.2015.05.013] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2014] [Revised: 04/12/2015] [Accepted: 05/05/2015] [Indexed: 02/07/2023]
Abstract
Garlic and its active constituents have shown versatile medicinal activities in the prevention and treatment of various disorders. Allyl methyl disulfide (AMDS) was identified as one of the major bioactive components in an effective inhalation fork remedy using fresh garlic paste in our previous study. In this work, we investigated the immunological properties of AMDS to elucidate the underlying mechanisms of the fork inhalation treatment using fresh garlic. The inhibition effect of AMDS on TNF-α-induced IL-8 and IP-10 production in intestinal epithelial cell lines HT-29 and Caco-2 was first evaluated. Pretreatment of the cells with AMDS attenuated IL-8 and IP-10 secretion induced by TNF-α in a dose-dependent manner in the non-cytotoxic concentration range of 20 to 150 μM. Mechanistic studies revealed that AMDS suppressed the accumulation of IL-8 mRNA and inhibited IкBα degradation and NF-кB p65 translocation into the nucleus at both the transcriptional and translational levels, suggesting that the attenuation effort of AMDS on cytokine IL-8 secretion might at least be partially related to the NF-κB signaling pathway. These results suggest that AMDS may be a promising phytochemical agent in the treatment of immunological disorders, such as ulcerative colitis, Crohn's disease, intestinal inflammatory diseases and others. In addition, the mechanistic study data indicated that immune modulation could be one of the therapeutic mechanisms of the effective fork treatment containing AMDS as one of the major components.
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Affiliation(s)
- Yongchun Zhang
- School of Pharmaceutical Sciences, Shandong University, 44 West Wenhua Road, Jinan, Shandong 250012, PR China; School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology, Daxue Road, Western University Science Park, Jinan, Shandong 250353, PR China
| | - Ying Wang
- School of Pharmaceutical Sciences, Shandong University, 44 West Wenhua Road, Jinan, Shandong 250012, PR China
| | - Fang Zhang
- School of Pharmaceutical Sciences, Shandong University, 44 West Wenhua Road, Jinan, Shandong 250012, PR China
| | - Kaiming Wang
- School of Pharmaceutical Sciences, Shandong University, 44 West Wenhua Road, Jinan, Shandong 250012, PR China
| | - Guangpu Liu
- School of Pharmaceutical Sciences, Shandong University, 44 West Wenhua Road, Jinan, Shandong 250012, PR China
| | - Min Yang
- School of Pharmaceutical Sciences, Shandong University, 44 West Wenhua Road, Jinan, Shandong 250012, PR China
| | - Yuxia Luan
- School of Pharmaceutical Sciences, Shandong University, 44 West Wenhua Road, Jinan, Shandong 250012, PR China
| | - Zhongxi Zhao
- School of Pharmaceutical Sciences, Shandong University, 44 West Wenhua Road, Jinan, Shandong 250012, PR China; Shandong Provincial Key Laboratory of Mucosal and Transdermal Drug Delivery Technologies, Shandong Academy of Pharmaceutical Sciences, 989 Xinluo Street, Jinan, Shandong 250101, PR China.
| | - Jianqiang Zhang
- Shandong Provincial Key Laboratory of Mucosal and Transdermal Drug Delivery Technologies, Shandong Academy of Pharmaceutical Sciences, 989 Xinluo Street, Jinan, Shandong 250101, PR China
| | - Xinke Cao
- Shandong Provincial Key Laboratory of Mucosal and Transdermal Drug Delivery Technologies, Shandong Academy of Pharmaceutical Sciences, 989 Xinluo Street, Jinan, Shandong 250101, PR China
| | - Daizhou Zhang
- Shandong Provincial Key Laboratory of Mucosal and Transdermal Drug Delivery Technologies, Shandong Academy of Pharmaceutical Sciences, 989 Xinluo Street, Jinan, Shandong 250101, PR China
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The multifaceted role of commensal microbiota in homeostasis and gastrointestinal diseases. J Immunol Res 2015; 2015:321241. [PMID: 25759839 PMCID: PMC4352444 DOI: 10.1155/2015/321241] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2014] [Accepted: 10/08/2014] [Indexed: 01/09/2023] Open
Abstract
The gastrointestinal tract houses a complex and diverse community of microbes. In recent years, an increased understanding of the importance of intestinal microbiota for human physiology has been gained. In the steady state, commensal microorganisms have a symbiotic relationship with the host and possess critical and distinct functions, including directly influencing immunity. This means that recognition of commensal antigens is necessary for the development of complete immune responses. Therefore, the immune system must face the challenge of maintaining mucosal homeostasis while dealing with undue passage of commensal or pathogenic microbes, as well as the host nutritional status or drug use. Disruption of this fine balance has been associated with the development of several intestinal inflammatory diseases. In this review, we discuss the mechanisms involved in the modulation of host-microbe interactions and how the breakdown of this homeostatic association can lead to intestinal inflammation and pathology.
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20
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Del Chierico F, Vernocchi P, Dallapiccola B, Putignani L. Mediterranean diet and health: food effects on gut microbiota and disease control. Int J Mol Sci 2014; 15:11678-99. [PMID: 24987952 PMCID: PMC4139807 DOI: 10.3390/ijms150711678] [Citation(s) in RCA: 118] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2014] [Revised: 06/04/2014] [Accepted: 06/11/2014] [Indexed: 02/07/2023] Open
Abstract
The Mediterranean diet (MD) is considered one of the healthiest dietary models. Many of the characteristic components of the MD have functional features with positive effects on health and wellness. The MD adherence, calculated through various computational scores, can lead to a reduction of the incidence of major diseases (e.g., cancers, metabolic and cardiovascular syndromes, neurodegenerative diseases, type 2 diabetes and allergy). Furthermore, eating habits are the main significant determinants of the microbial multiplicity of the gut, and dietary components influence both microbial populations and their metabolic activities from the early stages of life. For this purpose, we present a study proposal relying on the generation of individual gut microbiota maps from MD-aware children/adolescents. The maps, based on meta-omics approaches, may be considered as new tools, acting as a systems biology-based proof of evidence to evaluate MD effects on gut microbiota homeostasis. Data integration of food metabotypes and gut microbiota “enterotypes” may allow one to interpret MD adherence and its effects on health in a new way, employable for the design of targeted diets and nutraceutical interventions in childcare and clinical management of food-related diseases, whose onset has been significantly shifted early in life.
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Affiliation(s)
- Federica Del Chierico
- Unit of Metagenomics, Bambino Gesù Children's Hospital, IRCCS, Piazza Sant'Onofrio, Rome 400165, Italy.
| | - Pamela Vernocchi
- Unit of Metagenomics, Bambino Gesù Children's Hospital, IRCCS, Piazza Sant'Onofrio, Rome 400165, Italy.
| | - Bruno Dallapiccola
- Scientific Directorate, Bambino Gesù Children's Hospital, IRCCS, Piazza Sant'Onofrio, Rome 400165, Italy.
| | - Lorenza Putignani
- Unit of Parasitology, Bambino Gesù Children's Hospital, IRCCS, Piazza Sant'Onofrio, Rome 400165, Italy.
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21
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Walters SS, Quiros A, Rolston M, Grishina I, Li J, Fenton A, DeSantis TZ, Thai A, Andersen GL, Papathakis P, Nieves R, Prindiville T, Dandekar S. Analysis of Gut Microbiome and Diet Modification in Patients with Crohn's Disease. SOJ MICROBIOLOGY & INFECTIOUS DISEASES 2014; 2:1-13. [PMID: 29756026 PMCID: PMC5944867 DOI: 10.15226/sojmid/2/3/00122] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
OBJECTIVE The human intestine harbors trillions of commensal microbes that live in homeostasis with the host immune system. Changes in the composition and complexity of gut microbial communities are seen in inflammatory bowel disease (IBD), indicating disruption in host-microbe interactions. Multiple factors including diet and inflammatory conditions alter the microbial complexity. The goal of this study was to develop an optimized methodology for fecal sample processing and to detect changes in the gut microbiota of patients with Crohn's disease receiving specialized diets. DESIGN Fecal samples were obtained from patients with Crohn's disease in a pilot diet crossover trial comparing the effects of a specific carbohydrate diet (SCD) versus a low residue diet (LRD) on the composition and complexity of the gut microbiota and resolution of IBD symptoms. The gut microbiota composition was assessed using a high-density DNA microarray PhyloChip. RESULTS DNA extraction from fecal samples using a column based method provided consistent results. The complexity of the gut microbiome was lower in IBD patients compared to healthy controls. An increased abundance of Bacteroides fragilis (B. fragilis) was observed in fecal samples from IBD positive patients. The temporal response of gut microbiome to the SCD resulted in an increased microbial diversity while the LRD diet was associated with reduced diversity of the microbial communities. CONCLUSION Changes in the composition and complexity of the gut microbiome were identified in response to specialized carbohydrate diet. The SCD was associated with restructuring of the gut microbial communities.
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Affiliation(s)
| | - Antonio Quiros
- Department of Internal Medicine, University of CA Davis, Sacramento, USA
- Division of Pediatric Gastroenterology MUSC Children’s Hospital, Charleston, SC
| | - Matthew Rolston
- Department of Medical Microbiology and Immunology, University of CA Davis, USA
| | - Irina Grishina
- Department of Medical Microbiology and Immunology, University of CA Davis, USA
| | - Jay Li
- Department of Medical Microbiology and Immunology, University of CA Davis, USA
| | - Anne Fenton
- Department of Medical Microbiology and Immunology, University of CA Davis, USA
| | - Todd Z. DeSantis
- Department of Bioinformatics, Second Genome, San Bruno, CA 94066
| | - Anne Thai
- Department of Internal Medicine, University of CA Davis, Sacramento, USA
| | - Gary L Andersen
- Ecology Department, Lawrence Berkeley National Laboratory, Berkeley, CA 94720
| | - Peggy Papathakis
- Department of Nutrition, California Polytechnic State University, San Luis Obispo, CA, USA
| | - Raquel Nieves
- Department of Pediatrics, David Grant Medical Center, Travis Air Force Base, California, 94535
| | - Thomas Prindiville
- Department of Internal Medicine, University of CA Davis, Sacramento, USA
| | - Satya Dandekar
- Department of Medical Microbiology and Immunology, University of CA Davis, USA
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